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Finding the Fourth Proportional to 115,709.40, 173,564.10 and 36,831.60

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Solution

The fourth proportional to 115,709.40, 173,564.10 and 36,831.60 is: 55,247.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,709.40 : 173,564.10 = 36,831.60 : x
  2. Step 2: Convert to fraction form
    115,709.40/173,564.10 = 36,831.60/x
  3. Step 3: Cross multiply
    115,709.40x = 173,564.10 × 36,831.60
  4. Step 4: Simplify right side
    115,709.40x = 6,392,643,505.56
  5. Step 5: Solve for x
    x = 6,392,643,505.56/115,709.40
  6. Step 6: Final answer
    x = 55,247.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.